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/*
* Copyright (c) 1983, 1993, 1995
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
.asciz "$NetBSD: sigsetjmp.S,v 1.1 1995/12/09 13:26:46 ragge Exp $"
#endif /* LIBC_SCCS and not lint */
/*
* C library -- sigsetjmp, siglongjmp
*
* siglongjmp(a,v)
* will generate a "return(v)" from
* the last call to
* sigsetjmp(a, savemask)
* by restoring registers from the stack,
* and dependent on savemask restores the
* signal mask.
*/
#include "DEFS.h"
#include <machine/setjmp.h>
ENTRY(sigsetjmp, R6)
movl 4(ap),r0 # get env pointer
movl 8(ap),(_JBLEN*4)(r0) # save "savemask"
tstl 8(ap) # do saving of signal mask?
beql L1
jmp _setjmp+2 # yep, do full setjmp
L1: jmp __setjmp+2 # nope, skip to _setjmp
ENTRY(siglongjmp, 0)
movl 4(ap),r0 # get env pointer
tstl (_JBLEN*4)(r0) # test if "savemask" was set
beql L2
jmp _longjmp+2 # yep, do full longjmp
L2: jmp __longjmp+2 # nope, skip to _longjmp
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